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1、盖梁自重及作用效应计算（1/2盖梁长度）见表3-2。側面图3-2盖梁自重计算图式（尺寸单位：cm）表3-2盖梁自重产生的弯距、剪力计算截面编号自重/kN弯距/kN - m剪力/kN11q = (1.2x 0.35) x 1.90 x 25i+ (0.5 x 0.21x 0.35) x 1.90 x 25=19.95 +1.75M二-19.95 x 0.35/2 1.75 x 0.35 / 3= 3.70-21.7-21.722=21.70q? = (0.35 x 0.50 + 0.70 x 1.03+ 0.5 x 0.61 x 1.03)x 1.90 x 25 21.70=8.31 + 34.
2、25 +14.92 21.70=35.78M =8.31 x (0.35/2 + 0.68) 234.25 x 1.03/214.92 x 1.03/3=29.87-57.48-57.48333 = 0.10 x 1.30 x 1.90 x 25 = 6.18M 3 = 8.31 x (0.35/2 + 0.78)34.25 x (1.03/2 + 0.1)14.92 x (1.03/3 + 0.1)6.18 x 0.1/2=35.92-63.66-63.66M4 = -8.31 x (0.35/2 +1.43)-34.25 x (1.03/2 + 0.75)44q = 0.65 x 1.30
3、 x 1.90 x 25 = 40.144-103.80188.34-14.92 x (1.03/3 + 0.75)-(6.18 + 40.14) x 0.75/2=-90.45M =-40.41 x 0.65 / 2 = 13.135148.20148.2055 q = 0.65 x 1.30 x 1.90 x 25 = 40.14566 q = 2.40 x 1.30 x 1.90 x 25 = 148.206M5 =-40.41 x 0.65/2-148.20 x (2.40 / 2 + 0.65)=287.3盖梁自重(一半)：q + q + q + q + q + q = 29214(kN) 123456
盖梁自重及作用效应计算
